Smell for a rotten egg or sulfur odor
Listen for hissing or whistling near gas lines, appliances, or meters
Look for dead or dying vegetation near outdoor gas lines
Check for dust, dirt, or debris blowing from a specific spot
Watch for bubbles in standing water near suspected gas lines
Use a gas leak detector or combustible gas detector
Inspect appliance connections, valves, and flexible gas lines for damage
Check for unusually high gas bills without increased usage
Turn off appliances if you suspect a leak
Avoid using matches, lighters, switches, or electronics near the suspected leak
Leave the area immediately if the leak seems strong
Call your gas utility or emergency services from a safe location
Do not try to repair the leak yourself